CNC automatic material loading and taking device, CNC machining equipment and working method of CNC machining equipment

Abstract

The invention discloses a CNC automatic material loading and taking device, CNC machining equipment and a working method of the CNC automatic material loading and taking device. The material loading and taking device comprises a material taking mechanism, a clamping mechanism and a material storage mechanism. The material storage mechanism comprises a material table and a material disc placed on the material table. The material taking mechanism comprises a mechanical clamping jaw, an X-axis driving part and a Z-axis driving part, the mechanical clamping jaw is fixedly connected with one side of the X-axis driving part, and the other side of the X-axis driving part is fixedly connected with the Z-axis driving part; the clamping mechanism comprises a double-layer workbench, a pressing plate and a clamping assembly, the clamping assembly comprises an X-axis clamping piece and a Z-axis clamping piece, and an L-shaped fixing table matched with a workpiece is arranged on the side face of the pressing plate; a workpiece is clamped between the clamping plane of the X-axis clamping piece and the side face of the L-shaped fixing table and between the clamping plane of the Z-axis clamping piece and the bottom face of the L-shaped fixing table. Automatic material loading and taking can be achieved, manual operation of operators is not needed, the production efficiency is improved, and potential safety hazards in the clamping and taking process are eliminated.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, and in particular to a CNC automatic loading and unloading device, a CNC machining equipment, and its working method. Background Technology

[0002] In the CNC machining of mobile phone frames, clamping operations are required. Currently, clamping and unclamping of mobile phone frames are all manual operations. Operators need to manually place the workpiece onto the CNC fixture and secure it with a pneumatic screwdriver. During the unclamping stage, the screws also need to be loosened with a pneumatic screwdriver before the workpiece is removed from the fixture. However, for mass production of mobile phone frames, the current clamping and unclamping operations not only fail to meet production efficiency requirements, but also make it difficult to guarantee clamping accuracy and pose safety hazards, easily leading to injuries to operators. Summary of the Invention

[0003] This invention provides a CNC automatic loading and unloading device, a CNC machining equipment, and its working method to solve the technical problems of low efficiency and low safety in current CNC clamping and unloading operations.

[0004] To solve the above-mentioned technical problems, in a first aspect, the present invention provides a CNC automatic loading and unloading device, including a material handling mechanism, a clamping mechanism and a material storage mechanism; The material storage mechanism includes a material platform and a material tray placed on the material platform, the material tray being used to store workpieces; The material handling mechanism includes a mechanical gripper, an X-axis drive, and a Z-axis drive. The mechanical gripper is fixedly connected to one side of the X-axis drive, and the other side of the X-axis drive is fixedly connected to the Z-axis drive. The mechanical gripper is used to grip the workpiece on the material tray. The X-axis drive and the Z-axis drive drive the mechanical gripper to place the workpiece in the clamping mechanism. The clamping mechanism includes a double-layer worktable, a pressure plate, and a clamping assembly. The clamping assembly includes an X-axis clamping member and a Z-axis clamping member. The side of the pressure plate is provided with an L-shaped fixing platform adapted to the workpiece. The pressure plate and the X-axis clamping member are horizontally installed on the upper layer of the double-layer worktable, and the clamping plane of the X-axis clamping member is opposite to the side of the L-shaped fixing platform. The Z-axis clamping member is vertically installed on the lower layer of the double-layer worktable, and the clamping plane of the Z-axis clamping member is opposite to the bottom surface of the L-shaped fixing platform. The workpiece is clamped between the clamping plane of the X-axis clamping member and the side of the L-shaped fixing platform, and also between the clamping plane of the Z-axis clamping member and the bottom surface of the L-shaped fixing platform.

[0005] In some embodiments, the clamping mechanism includes two clamping components symmetrically arranged on both sides of the pressure plate.

[0006] In some embodiments, the X-axis clamping member includes a first hydraulic cylinder, a first push block, a second push block, a first buffer block, and a second buffer block. The first hydraulic cylinder is disposed on the upper layer of the double-layer worktable. One side of the first push block is fixedly connected to the piston rod of the first hydraulic cylinder, and the other side of the first push block is movably connected to the second push block via a spring. The first buffer block and the second buffer block are movably connected to the two ends of the first push block facing the second push block. Both the first buffer block and the second buffer block are provided with slide rails, and the two ends of the first push block are provided with slide grooves adapted to the slide rails.

[0007] In some embodiments, the X-axis clamping member further includes a preload block, which is fixedly connected to the side of the second push block facing the L-shaped fixing table.

[0008] In some embodiments, the X-axis clamping member further includes a stabilizing plate and a slide rail assembly, the slide rail assembly being disposed on the upper layer of the double-layer worktable, the bottom surface of the stabilizing plate being slidably connected to the slide rail assembly, and the top surface of the stabilizing plate being fixedly connected to the second push block.

[0009] In some embodiments, the Z-axis clamping member includes a second hydraulic cylinder, a pull-down block, multiple connecting rods, and multiple pressure blocks. The second hydraulic cylinder is disposed on the lower layer of the double-layer worktable. The piston rod of the second hydraulic cylinder is fixedly connected to one side of the pull-down block. The connecting rod is fixedly connected to the other side of the pull-down block. The connecting rod passes through the upper layer of the double-layer worktable and is fixedly connected to the pressure block. One end of the pressure block extends above the L-shaped fixed platform, and there are intervals between the multiple pressure blocks.

[0010] In some embodiments, the device further includes a dual-axis drive base, with the double-layer worktable disposed above and fixedly connected to the dual-axis drive base.

[0011] In some embodiments, the tray is provided with a plurality of workpiece slots adapted to the workpiece, and the workpiece slots are provided with a plurality of hollow openings adapted to the mechanical grippers.

[0012] Secondly, the present invention also provides a CNC machining equipment, including a machining drill assembly and the aforementioned CNC automatic loading and unloading device.

[0013] Thirdly, the present invention also provides a method for operating a CNC machining equipment, the method comprising: The X-axis drive and Z-axis drive of the material handling mechanism drive the mechanical gripper of the material handling mechanism to place the workpiece on the tray onto the L-shaped fixed table of the clamping mechanism. The clamping planes of the X-axis clamping member and the Z-axis clamping member of the clamping mechanism are controlled to move toward the L-shaped fixed table to clamp the workpiece onto the L-shaped fixed table. Control the machining drill to machine the workpiece; After the workpiece is processed, the X-axis clamping member and the Z-axis clamping member are controlled to release the workpiece, and the mechanical gripper is controlled to place the workpiece on the material tray to complete the workpiece processing.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The CNC automatic loading and unloading device of the present invention can automatically load and unload materials without the need for manual operation by operators, thereby improving production efficiency and eliminating safety hazards in the clamping and unloading process; 2. Through the cooperation of the material handling mechanism and the clamping mechanism, it can adaptively realize the fixing, clamping, loading and unloading of mobile phone frames of different sizes without the need for manual adjustment by operators, thus meeting the needs of mass production of different product specifications.

[0015] 3. The clamping mechanism uses hydraulic cylinders to provide clamping force on the X-axis and Y-axis, which can more effectively fix the workpiece, prevent the workpiece from moving or vibrating during processing, and improve processing accuracy and efficiency.

[0016] 4. This device has a simple working method and is fully automated, requiring no manual operation from personnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the CNC automatic loading and unloading device shown in an embodiment of the present invention; Figure 2 This is a schematic diagram of the storage mechanism from an exploded view, as shown in an embodiment of the present invention. Figure 3 This is an exploded view structural diagram of the material handling mechanism shown in an embodiment of the present invention; Figure 4 This is a schematic diagram of the clamping mechanism from an exploded view, as shown in an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of the pressure plate shown in an embodiment of the present invention; Figure 6 This is a schematic diagram of the workpiece structure shown in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the X-axis clamping member shown in an embodiment of the present invention; Figure 8 This is an exploded view structural diagram of the X-axis clamping member shown in an embodiment of the present invention; Figure 9 This is a schematic diagram of the Z-axis clamping component shown in an embodiment of the present invention; Figure 10 This is an exploded view structural diagram of the Z-axis clamping component shown in an embodiment of the present invention; Figure 11 This is a schematic diagram illustrating the connection structure between the dual-axis drive base and the CNC automatic loading and unloading device in an embodiment of the present invention. Figure 12 This is a schematic diagram of the exploded view structure of the material tray shown in an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of a CNC machining equipment shown in an embodiment of the present invention; Figure 14 This is a schematic flowchart illustrating the working method of the CNC machining equipment according to an embodiment of the present invention. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please refer to Figures 1 to 5 The CNC automatic loading and unloading device A in this embodiment includes a material handling mechanism 1, a clamping mechanism 2, and a material storage mechanism 3; The material storage mechanism 3 includes a material platform 31 and a material tray 32 placed on the material platform, the material tray 32 being used to store the workpiece 4; The material handling mechanism 1 includes a mechanical gripper 11, an X-axis drive 12, and a Z-axis drive 13. The mechanical gripper 11 is fixedly connected to one side of the X-axis drive 12, and the other side of the X-axis drive 12 is fixedly connected to the Z-axis drive 13. The mechanical gripper 11 is used to grip the workpiece 4 on the material tray 32. The X-axis drive 12 and the Z-axis drive 13 drive the mechanical gripper 11 to place the workpiece 4 in the clamping mechanism 2. The clamping mechanism 2 includes a double-layer worktable 21, a pressure plate 22, and a clamping assembly 23. The clamping assembly 23 includes an X-axis clamping member 231 and a Z-axis clamping member 232. The side of the pressure plate 22 is provided with an L-shaped fixing platform 221 adapted to the workpiece 4. The pressure plate 22 and the X-axis clamping member 231 are horizontally installed on the upper layer of the double-layer worktable 21, and the clamping plane of the X-axis clamping member 231 is opposite to the side of the L-shaped fixing platform 221. The Z-axis clamping member 232 is vertically installed on the lower layer of the double-layer worktable 21, and the clamping plane of the Z-axis clamping member 232 is opposite to the bottom surface of the L-shaped fixing platform 221. The workpiece 4 is clamped between the clamping plane of the X-axis clamping member 231 and the side of the L-shaped fixing platform 221, and between the clamping plane of the Z-axis clamping member 232 and the bottom surface of the L-shaped fixing platform 221.

[0022] In this embodiment, as Figure 3 As shown, the claws of the mechanical gripper 11 are movable and are powered by a cylinder to release or clamp; the X-axis drive 12 is provided with a sliding component and a cylinder in the X-axis direction (horizontal direction) to drive the mechanical gripper 11 to move in the X-axis direction; the Z-axis drive 13 is provided with a sliding component and a cylinder in the Z-axis direction (vertical direction) to drive the mechanical gripper 11 to move in the Z-axis direction; through the cooperation of the X-axis drive 12 and the Z-axis drive, the mechanical gripper 11 moves to the position of the material tray 32, and through the release and clamping operation of the mechanical gripper 11, the workpiece 4 on the material tray 32 is clamped.

[0023] like Figure 5 As shown, the pressure plate 22 is provided with an L-shaped fixed stage 221, and also has a groove adapted to the mechanical gripper 11 and a groove corresponding to the processing position of the workpiece 4, so that the mechanical gripper 11 can penetrate into the L-shaped fixed stage 221 to place or clamp the workpiece 4. It can be understood that the shape design of the pressure plate 22 can be adapted to the shape of the workpiece, and the working position of the pressure plate 22 can also be adapted to the number of clamping components 23; the L-shaped height of the L-shaped fixed stage 221 is less than the height of the workpiece 4.

[0024] like Figure 4As shown, the X-axis clamping member 231 clamps the workpiece 4 onto the L-shaped fixed table 221 from the side, and the Z-axis clamping member 232 presses the workpiece 4 downwards onto the L-shaped fixed table 221 from above. It can be understood that for... Figure 6 The workpiece 4 (phone frame) shown has its side surface being machined. Therefore, after both the X-axis clamping member 231 and the Z-axis clamping member 232 clamp the workpiece 4, the Z-axis clamping member 232 continues to clamp the workpiece 4, while the X-axis clamping member 231 is returned to its original position to leave machining space for the drilling tool to machine the workpiece 4. It should be noted that, although Figure 4 The clamping mechanism 2 shown is two, but in other embodiments, the clamping mechanism 2 can be one or more.

[0025] In this embodiment, the mechanical gripper 11, the X-axis drive component 12, and the Z-axis drive component 13 work together to achieve automatic material handling of the workpiece 4. The pressure plate 22 works in conjunction with the X-axis clamping component 231 and the Z-axis clamping component 232 to achieve automatic locking of the workpiece 4. This eliminates the need for operators to manually place the workpiece or use a pneumatic screwdriver to lock it, freeing up manual operation and effectively improving production efficiency.

[0026] In some embodiments, such as Figure 4 As shown, the clamping mechanism 2 includes two clamping components 23 symmetrically arranged on both sides of the pressure plate 22. By providing two clamping components 23, dual-station processing is achieved. Optionally, to improve the workpiece 4's material handling process, two material handling mechanisms 3 are also adaptively provided, and the interval between the two material handling mechanisms 3 is the same as the interval between the two L-shaped fixed tables.

[0027] In some embodiments, such as Figure 7 and Figure 8 As shown, the X-axis clamping member 231 includes a first hydraulic cylinder 2311, a first push block 2312, a second push block 2313, a first buffer block 2314, and a second buffer block 2315. The first hydraulic cylinder 2311 is disposed on the upper layer of the double-layer worktable 21. One side of the first push block 2312 is fixedly connected to the piston rod of the first hydraulic cylinder 2311. The other side of the first push block 2312 is movably connected to the second push block 2313 through a spring 2316. The first buffer block 2314 and the second buffer block 2315 are movably connected to the two ends of the first push block 2312 facing the second push block 2313. Both the first buffer block 2314 and the second buffer block 2315 are provided with slide rails a. The two ends of the first push block 2312 are provided with slide grooves b that are adapted to the slide rails.

[0028] In this embodiment, after the first cylinder 2311 is pushed out, the second push block 2312 contacts the workpiece 4. To protect the workpiece 4, the spring 2316 provides a buffering and rebounding effect for the second push block 2312. The first buffer block 2314 and the second buffer block 2315 provide stability for the buffering and rebounding process of the second push block 2312, so as to ensure that the second push block 2312 will not tilt and misalign with the contact surface of the workpiece 4, thereby ensuring the pressing effect of the second push block 2312 on the workpiece 4.

[0029] Optionally, a cover plate is also provided above the X-axis clamping member 231 to block powder particles falling from the workpiece 4 during processing, thereby ensuring the normal operation of the X-axis clamping member 231 and improving its service life. It should be noted that the various components of the X-axis clamping member 231 in this embodiment are replaceable to cope with possible malfunctions that may occur during long-term large-scale production of the CNC automatic loading and unloading device.

[0030] In some embodiments, such as Figure 8 As shown, the X-axis clamping member 231 also includes a pre-pressure block 2317, which is fixedly connected to the side of the second push block 2313 facing the L-shaped fixed platform 221.

[0031] In this embodiment, the pre-compression block 2317 can further provide a buffering effect for contacting the workpiece 4 to protect the workpiece 4. Optionally, the pre-compression block 2317 is provided with a plurality of buffer blocks on the side facing the workpiece 4, and the buffer blocks are connected to the pre-compression block by springs to further improve the buffering effect.

[0032] In some embodiments, such as Figure 8 As shown, the X-axis clamping member 231 also includes a stabilizing plate 2318 and a slide rail assembly 2319. The slide rail assembly 2319 is disposed on the upper layer of the double-layer worktable 21. The bottom surface of the stabilizing plate 2318 is slidably connected to the slide rail assembly 2319, and the top surface of the stabilizing plate 2318 is fixedly connected to the second push block 2313.

[0033] In this embodiment, sufficient space is provided for the workpiece 4, and the piston rod of the first cylinder 2311 can be made longer. As the piston rod is lengthened, the linear motion stability when the piston rod is pushed out will decrease. Therefore, this embodiment sets a stabilizing plate 2318 and a slide rail assembly 2319 to improve the linear motion stability of the second push block 2313 and ensure the clamping effect.

[0034] In some embodiments, such as Figure 9 and Figure 10As shown, the Z-axis clamping member 232 includes a second hydraulic cylinder 2321, a pull-down block 2322, multiple connecting rods 2323, and multiple pressure blocks 2324. The second hydraulic cylinder 2321 is disposed on the lower layer of the double-layer worktable 21. The piston rod of the second hydraulic cylinder 2321 is fixedly connected to one side of the pull-down block 2322. The connecting rod 2323 is fixedly connected to the other side of the pull-down block 2322. The connecting rod 2323 passes through the upper layer of the double-layer worktable 21 and is fixedly connected to the pressure block 2324. One end of the pressure block 2324 extends above the L-shaped fixed platform 221, and there are intervals between the multiple pressure blocks 2324.

[0035] In this embodiment, the second hydraulic cylinder 2321 is extended in the default state. When it is necessary to clamp the workpiece 4, the second hydraulic cylinder 2321 retracts its piston rod, and the pull-down block 2322 moves downward accordingly, thereby driving the pressure block 2324 to move downward, thus pressing the workpiece 4 against the L-shaped fixed table 221. Optionally, the spacing between the multiple pressure blocks 2324 can be adaptively adjusted according to the processing position of the workpiece 4; the upper side of the end of the pressure block 2324 near the L-shaped fixed table is inclined, so that when the workpiece 4 touches the pressure block 2324 during the process of the material handling mechanism 2 placing the workpiece 4 onto the L-shaped fixed table 221, it can move downward along the inclined surface to the L-shaped fixed table.

[0036] In some embodiments, such as Figure 11 As shown, the device also includes a dual-axis drive base 5, and the double-layer worktable 21 is disposed above the dual-axis drive base 5 and is fixedly connected to the dual-axis drive base 5.

[0037] In this embodiment, the dual-axis drive base 5 is a dual-axis drive base based on X-axis drive and Y-axis drive, so as to adjust the position of the clamping mechanism 2 and the storage mechanism 3 relative to the material picking mechanism 1, thereby facilitating the material picking mechanism 1 to load and pick up materials.

[0038] In some embodiments, such as Figure 12 As shown, the tray 32 is provided with a plurality of workpiece slots 321 adapted to the workpiece 4, and the workpiece slots 321 are provided with a plurality of hollow openings 322 adapted to the mechanical gripper 11.

[0039] In this embodiment, the workpiece slot 321 ensures that the mechanical gripper 11 stably clamps the workpiece 4 in the target posture, and the hollow opening 322 facilitates the mechanical gripper 11 to extend into the material tray to clamp the workpiece 4. Optionally, the table surface of the material tray has a hollow structure to further facilitate the operation of the mechanical gripper 11.

[0040] Please see Figure 13This invention illustrates a schematic diagram of a CNC machining equipment, which includes a machining drill assembly B and the aforementioned CNC automatic loading and unloading device A. In this embodiment, the machining drill assembly B is used to machine the workpiece after the CNC automatic loading and unloading device A clamps the workpiece.

[0041] Please see Figure 14 The present invention illustrates a flowchart of a working method for a CNC machining equipment, the working method comprising: Step 101: Control the X-axis drive and Z-axis drive of the material picking mechanism to drive the mechanical gripper of the material picking mechanism to place the workpiece on the material tray onto the L-shaped fixed table of the clamping mechanism. Step 102: Control the clamping planes of the X-axis clamping member and the Z-axis clamping member of the clamping mechanism to move toward the L-shaped fixed table, so as to clamp the workpiece on the L-shaped fixed table. Step 103: Control the machining drill to machine the workpiece; Step 104: After the workpiece is processed, control the X-axis clamping member and the Z-axis clamping member to release the workpiece, and control the mechanical gripper to place the workpiece on the material tray to complete the workpiece processing.

[0042] In this embodiment, the mechanical gripper, X-axis drive and Z-axis drive work together to achieve automatic workpiece picking. The pressure plate works with the X-axis clamping and Z-axis clamping to achieve automatic workpiece locking. Therefore, there is no need for operators to manually place the workpiece or use a pneumatic screwdriver to lock the workpiece. The whole process is fully automated, freeing up manual operation and effectively improving production efficiency.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A CNC automatic loading and unloading device, characterized in that, Includes a material handling mechanism, a clamping mechanism, and a storage mechanism; The material storage mechanism includes a material platform and a material tray placed on the material platform, the material tray being used to store workpieces; The material handling mechanism includes a mechanical gripper, an X-axis drive, and a Z-axis drive. The mechanical gripper is fixedly connected to one side of the X-axis drive, and the other side of the X-axis drive is fixedly connected to the Z-axis drive. The mechanical gripper is used to grip the workpiece on the material tray. The X-axis drive and the Z-axis drive drive the mechanical gripper to place the workpiece in the clamping mechanism. The clamping mechanism includes a double-layer worktable, a pressure plate, and a clamping assembly. The clamping assembly includes an X-axis clamping member and a Z-axis clamping member. The side of the pressure plate is provided with an L-shaped fixing platform adapted to the workpiece. The pressure plate and the X-axis clamping member are horizontally installed on the upper layer of the double-layer worktable, and the clamping plane of the X-axis clamping member is opposite to the side of the L-shaped fixing platform. The Z-axis clamping member is vertically installed on the lower layer of the double-layer worktable, and the clamping plane of the Z-axis clamping member is opposite to the bottom surface of the L-shaped fixing platform. The workpiece is clamped between the clamping plane of the X-axis clamping member and the side of the L-shaped fixing platform, and also between the clamping plane of the Z-axis clamping member and the bottom surface of the L-shaped fixing platform.

2. The CNC automatic loading and unloading device as described in claim 1, characterized in that, The clamping mechanism includes two clamping components symmetrically arranged on both sides of the pressure plate.

3. The CNC automatic loading and unloading device as described in claim 1, characterized in that, The X-axis clamping component includes a first hydraulic cylinder, a first push block, a second push block, a first buffer block, and a second buffer block. The first hydraulic cylinder is disposed on the upper layer of the double-layer worktable. One side of the first push block is fixedly connected to the piston rod of the first hydraulic cylinder, and the other side of the first push block is movably connected to the second push block via a spring. The first buffer block and the second buffer block are movably connected to the two ends of the first push block facing the second push block. Both the first buffer block and the second buffer block are provided with slide rails, and the two ends of the first push block are provided with slide grooves adapted to the slide rails.

4. The CNC automatic loading and unloading device as described in claim 3, characterized in that, The X-axis clamping component also includes a pre-pressure block, which is fixedly connected to the side of the second push block facing the L-shaped fixed platform.

5. The CNC automatic loading and unloading device as described in claim 3, characterized in that, The X-axis clamping component also includes a stabilizing plate and a slide rail assembly. The slide rail assembly is located on the upper layer of the double-layer worktable. The bottom surface of the stabilizing plate is slidably connected to the slide rail assembly, and the top surface of the stabilizing plate is fixedly connected to the second push block.

6. The CNC automatic loading and unloading device as described in claim 1, characterized in that, The Z-axis clamping component includes a second hydraulic cylinder, a pull-down block, multiple connecting rods, and multiple pressure blocks. The second hydraulic cylinder is located on the lower layer of the double-layer worktable. The piston rod of the second hydraulic cylinder is fixedly connected to one side of the pull-down block, and the connecting rod is fixedly connected to the other side of the pull-down block. The connecting rod passes through the upper layer of the double-layer worktable and is fixedly connected to the pressure block. One end of the pressure block extends above the L-shaped fixed platform, and there are intervals between the multiple pressure blocks.

7. The CNC automatic loading and unloading device as described in claim 1, characterized in that, The device also includes a dual-axis drive base, and the double-layer worktable is disposed above the dual-axis drive base and fixedly connected to the dual-axis drive base.

8. The CNC automatic loading and unloading device as described in claim 1, characterized in that, The tray is provided with multiple workpiece slots adapted to the workpiece, and the workpiece slots are provided with several hollow openings adapted to the mechanical grippers.

9. A CNC machining equipment, characterized in that, It includes a machining drill assembly and a CNC automatic loading and unloading device as described in any one of claims 1 to 8.

10. A method of operating the CNC machining equipment as described in claim 9, characterized in that, The working method includes: The X-axis drive and Z-axis drive of the material handling mechanism drive the mechanical gripper of the material handling mechanism to place the workpiece on the tray onto the L-shaped fixed table of the clamping mechanism. The clamping planes of the X-axis clamping member and the Z-axis clamping member of the clamping mechanism are controlled to move toward the L-shaped fixed table to clamp the workpiece onto the L-shaped fixed table. Control the machining drill to machine the workpiece; After the workpiece is processed, the X-axis clamping member and the Z-axis clamping member are controlled to release the workpiece, and the mechanical gripper is controlled to place the workpiece on the material tray to complete the workpiece processing.

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